Cut-off socket.



No. 808,689. PATENTED JAN. 2, 1906. 0. SAUGSTAD.

GUT-GPP SOCKET.

APPLIGATION FILED Mums, 1905.

WITNESSES:

unirsi) STATES PATENT OFFIE.

OLAF SAUGSTAD, OF PLAINFIELD, NEW JERSEY, ASSIGNOR TO WILLIAM B.WADSWORTH, OF PLAINFIELD, NEW JERSEY.

CUT-OFF SOCKET.

specification of Letters Patent.

Patented Jan. 2, 1906.

To all whom it may concern,.-

Be itknown that I, OLAF SAUGSTAD, acitizen of the United States ofAmerica, and a resident of Plainfield, county of Union, State of NewJersey, have invented certain new and useful Improvements in Ont-OffSockets, of which the following is a specification, reference being hadto the accompanying drawings, forming a part thereof.

My invention relates to improvements in a cut-off socket, such as may beemployed in connection with a thermostatic regulator used on hot-watertanks and the like.

The usual plan heretofore has been to screw a thermostatic regulatordirectly into the wall of a tank. boiler, or the like, so that thethermostatic tube is directly immersed in the Water therein, wherebyregulation may be effected in accordance with the temperature of thewater. A common use for such a device is in connection with thehot-water tank of a hot-water heating system. When a regulator so fittedrequires to be removed for purposes of repair or the like, it has firstbeen necessary to drain the system of water, because otherwise' waterwould flow out of the hole through which the regulator is removed. Thiswater is often under considerable pressure and at quite a hightemperature, so that it has been practically impossible to remove theregulator except by first draining the system, and this not only takestime, but necessitates the suspension of operation of the heatingsystem, which is eX- tremely undesirable.

In my present invention it is my purpose to provide a cut-off socket tobe screwed directly into the tank and which is adapted to receive theregulator. This socket will then have means for permitting freecirculation therethrough of the water in the tank` but will be providedwith means for preventing such circulation when desired. By use of sucha device the thermostatic regulator may be freely removed and insertedin the socket during the time that the valve or other means forcontrolling circulation of water therethrough is closed, while when theregulator is in positionk the said valve will be open, so that it willbe directly affected by the water in the tank, just as if the socketwere not present. Thus the thermostatic regulator may be removed at willwithout affecting the system in any manner, the heating system being ofcourse regulated by hand for so long a time as the automatic regulatoris out of use; but the use of such a "device prevents the necessity ofdraining the system or closing it when the regulator is to be removed orrepaired.

I will n w proceed to describe a cut-off socket embodying my inventionand will then point out the novel features in claims.

In the drawings, Figure l is a view in central longitudinal section of asocket embodying my invention, showing the same in position in a tankand showing also in dotted lines a thermostatic regulator mountedtherein. Fig. 2 is a similar view showing the same as provided with anair-vent.

The cut-off socket herein comprises a shell l and a tubular extension 2,closed at the end by a cap 3 or equivalent means. The shell is providedwith a screw-threaded portion 4, by which it may be screwed into acorresponding internally-screw-threaded opening in the wall of the tank,boiler, or the like.

5 'designates the tank, a portion of which is shown in the drawings. Atits outer end the shell 1 is provided with an internally-screwthreadedportion 6, arranged to receive a thermostatic regulator 11, here shownin dotted lines as in operative position. The length of the shellportion 1 may vary, as desired. It may be quite short` if preferred; butit is convenient to make it several inches in length, because the tankis usually lagged with asbestos or other covering, and in such case asocket conveniently brings the head of the regulator out to a positionbeyond thelagging, as will be readily understood.

In order to allow the water in the tank to circulate through the socket,I provide a channel or channels 7, which may be controlled by a needleor other valve 8. By manipulation of the valve 8 free circulationthrough the cut-off socket is permitted or prevented. An outer cap 9 ispreferably provided to prevent possible leakage past the needle-valve tothe exterior of the device and also to prevent tampering with the valveby unauthorized persons. If desired, an air-vent 10 may be provided,through which air may be released when the valve 8 is rst opened, thisto prevent the possibility of any air being locked in the device,whereby a free circulation of the water might be prevented.

It will be seen that in using my device the thermostatic portion of theregulator is immersed directly in the water in the tank as IOC IOS

fully and freely as if it Were inserted directly in the tank instead ofin the socket, but that by use of the socket the regulator may beremoved at Will Without discharge of Water other than the small quantitycontained in the socket itself.

What I claim is- 1. A cut-off socket comprising a socket member havingmeans for securing same to a tank, means for removably receiving' aregulator therein, and means for controlling admission of fluid to thesocket from the tank.

2. Aout-orf sockethavinga portion adapted to enter a tank, and providedWith means for securing it to the tank, said socket having means forcontrolling admission thereto or' fluid from the tank, and adapted andarranged to removably support a thermostatic device.

3. A cut-off socket comprising a shell adapted to be secured to the Wallof a tank, and a tube adapted to extend inward Within the tank, saidsocket provided with means for controlling admission thereto of fluidfrom the tank, and adapted and varranged to removably support atemperature-regulator.

il. A cut-0E socket comprising a shell adapted to be secured to the Wallor' a tank, and a tube adapted to extend therefrom inward within thetank, when in position therein, said shell having aninternally-screW-threaded portion adapted for engagement With thecorrespondingly-screW-threaded portion of a temperature regulator, saidsocket provided With means for controlling admission thereto of fluidfrom the tank.

5. The combination With a tank and a thermostatic device extendingtherein, of a cut-off socket surrounding the portion of the thermostaticdevice in the tank, said socket provided with means controllingadmission of Huid thereto from the tank.

6. The combination with a tank, of a socket extending Within same, and athermostatic device removably fitted to said socket, said socket havingmeans for controlling admission thereto of fluid from the tank.

OLAF SAUGSTAD.

Titnessesz WILLARD VADsWoR'rH, D. HOWARD HAYWooD.

